Fix typo.

Doc/api/concrete.tex

@@ -996,7 +996,7 @@ use these APIs:
 \end{cfuncdesc}
 
 \begin{cfuncdesc}{PyObject*}{PyUnicode_FromString}{const char *u}
-  Create a Unicode Object from the char buffer \var{u} of the.
+  Create a Unicode Object from the char buffer \var{u}.
   \var{u} must be 0-terminated, the bytes will be interpreted as
   being latin-1 encoded. \var{u} may also be \NULL{} which causes the
   contents to be undefined. It is the user's responsibility to fill